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A kind of release agent for masking tape and preparation method thereof

A masking tape and release agent technology, applied in adhesives, defoamers, film/sheet adhesives, etc., can solve the problems of high temperature curing, release agent dependence on imports, low mobility, etc., to achieve good durability Temperature and weather resistance, less foaming, and low mobility effects

Active Publication Date: 2016-03-02
BLUE OCEAN & BLACK STONE TECH CO LTD FUJIAN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above problems, the present invention provides a product with good temperature and weather resistance, which can provide suitable release force for masking tape and has low mobility, which can solve the problem that the existing release agent is completely dependent on imports. The current situation of the masking tape and its preparation method can solve the problems of high temperature curing and the like

Method used

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  • A kind of release agent for masking tape and preparation method thereof

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preparation example Construction

[0020] The preparation method of release agent for masking tape of the present invention comprises the following steps:

[0021] S011. Add sodium lauryl sulfate with a mass percentage of 80-90% in the above formula and deionized water with a mass percentage of 20-35% in the pre-emulsification kettle, mix and stir evenly, and then add all the ethyl acrylate in the formula ester, butyl acrylate, methyl methacrylate, styrene, succinic acid, and cross-linking monomers, and stir evenly to make a monomer pre-emulsion;

[0022] S012, adding 50-70% deionized water and the remaining sodium lauryl sulfate and all sodium bicarbonate into the reaction kettle, stirring evenly;

[0023] S013, the temperature of the reaction kettle is raised to 78-85° C., and the ammonium persulfate with a mass percentage of 60-75% and the monomer pre-emulsion with a mass percentage of 2-8% in the formula are added;

[0024] S014. After 5-15 minutes, start to add the remaining monomer pre-emulsion and ammon...

Embodiment 1

[0031] The release agent for masking tape of the embodiment of the present invention 1, it is made up of following raw material by weight:

[0032] Ethyl Acrylate 190, Butyl Acrylate 35, Methyl Methacrylate 110, Succinic Acid 8, 1,4-Butanediol Diacrylate 1.75, Deionized Water 580, Sodium Bicarbonate 0.2, Sodium Lauryl Sulfate 3.24, ammonium persulfate 2.35, defoamer 1.3, zinc glycinate 18, ammonia water 10, sodium behenyl succinate 30 and modified polysiloxane 5.

[0033] The preparation method of the release agent for masking tape of the embodiment of the present invention 1 comprises the following steps:

[0034] S111. Preparation of monomer pre-emulsion: In the pre-emulsification kettle, add sodium lauryl sulfate with a mass percentage of 80% in the formula and deionized water with a mass percentage of 25% to mix and stir evenly, then add to the formula Stir all ethyl acrylate, butyl acrylate, methyl methacrylate, and succinic acid evenly to make a monomer pre-emulsion;

...

Embodiment 2

[0043]The release agent for masking tape of the embodiment of the present invention 2, it is made up of following raw material by weight:

[0044] Ethyl Acrylate 144.5, Butyl Acrylate 62, Styrene 125, Succinic Acid 10, Deionized Water 570, Sodium Bicarbonate 0.2, Sodium Lauryl Sulfate 3.34, Sodium Persulfate 2.35, Defoamer 1.5, Zinc Glycinate 21 , ammonia water 12, long-chain alkyl surfactant 60 and modified polysiloxane 2.

[0045] The preparation method of the release agent for masking tape of the embodiment of the present invention 2 comprises the following steps:

[0046] S211. In the pre-emulsification kettle, add sodium lauryl sulfate with a mass percentage of 80% in the formula and deionized water with a mass percentage of 25% to mix and stir evenly, then add all the ethyl acrylate and butyl acrylate in the formula Ester, styrene, succinic acid, stir evenly to make monomer pre-emulsion;

[0047] S212. Add 60% deionized water, the remaining sodium lauryl sulfate and al...

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Abstract

The invention relates to a mold release agent for a masking tape, and a preparation method of the mold release agent. The mold release agent is prepared from the following raw materials in parts by weight: 150-270 parts of ethyl acrylate, 0-90 parts of butyl acrylate, 0-110 parts of methyl methacrylate, 0-105 parts of styrene, 5-10 parts of succinic acid, 0-7 parts of crosslinking monomer, 500-600 parts of deionized water, 0.1-0.4 part of sodium bicarbonate, 3-5 parts of lauryl sodium sulfate, 1.2-3.0 parts of ammonium persulfate, 0.5-2 parts of a defoaming agent, 30-55 parts of zinc glycinate, 5-15 parts of ammonia water, 20-100 parts of long-chain alkyl surface active agent and 0-10 parts of modified polysiloxane. The mold release agent is a water-based mold release agent, is convenient to use and can be directly coated or can be coated after being diluted by water; a catalyst is not fed into the mold release agent, and the mold release agent is capable of crosslinking at low temperature and does not contain an organic solvent, so that the mold release agent is free from environmental pollution and harmless to the human health; furthermore, the mold release agent has good heat resistance and weather resistance, is capable of providing proper mold release force for the masking tape, and is lower in migration rate; the tape prepared by the mold release agent is free from residual glue after being used, so that the protected surface is not polluted.

Description

technical field [0001] The invention relates to the technical field of release agents, in particular to a release agent for masking tapes and a preparation method thereof. Background technique [0002] Masking tape is a kind of high-tech decoration and spraying paper, which is widely used in the production and maintenance of automobiles, airplanes, ships and other means of transportation; spray paint covering in the production of various electronic appliances; and covering in printing and paper industry, room temperature decoration Covering with spray paint, wrapping light objects, packaging, etc. Masking tape is mainly composed of three parts: impregnated paper (base paper such as masking paper is impregnated with impregnated liquid), adhesive and release agent. Release agent, also known as anti-sticking agent and release agent, is one of the key materials for the production of masking tapes, which has an important impact on the function and application of masking tapes. T...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H21/14D21H21/12D21H19/00C08F220/18C08F220/14C08F212/08C08F2/26C09J7/04
Inventor 杜夕彦马慧罗贺斌
Owner BLUE OCEAN & BLACK STONE TECH CO LTD FUJIAN
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